Answer:
y<3
Step-by-step explanation:
It is y<3 because all areas below y=3 are shaded.
In addition, the line y=3 is dotted, which means it is not part of the inequality (i.e. strict inequality).
If it had been a full line, then it would be y<=3.
Well in one hour the train going east is going 40 mph. In 4 hours the train is 160miles because 40x4=160 so it's 160 miles away from the satiation, and train that's going west is going 50 mph. In 4 hours the train is 200 miles from the satiation. 50x4=200 if you add 160 and 200 you get the distance between both trains
Yes, for 3/5= 18/30 and 3/6= 15/30